闪蒸真空热解(FVP) 4-乙酰基四唑并[1,5- a ]吡啶 5在400°C时可提供3-甲基异恶唑并[3,4- b ]吡啶 通过X射线晶体学证实其结构的6。在较高的热解温度下,不稳定异吲哚基 获得8,它以酮形式存在(1,2-二氢吡咯并[2,3- b ]吡啶-3-)8K英寸CDCl 3 溶液和烯醇互变异构体(3-羟基吡咯并[2,3- b ]吡啶)8E在二甲基亚砜。这异吲哚基 8氧化二聚为异靛蓝9,在2位发生缩合反应并与甲氧基亚甲基Meldrum的酸位于1位。FVP对应乙酰四唑并[1,5- a ]喹啉 19要复杂得多,2-(氰基苯基)乙腈 主要产品在750°C下达到30(而不是杂吲哚基)。的FVP3-乙酰基-4-叠氮喹啉 在400°C下243-甲基异唑并[4,3- c ]喹啉 如图33所示,但在较高温度下未观察到重配成杂吲哚基。
New methodology for acridine synthesis using a rhodium-catalyzed benzannulation
作者:Philippe Belmont、Jean-Christophe Andrez、Charlotte S.M. Allan
DOI:10.1016/j.tetlet.2004.02.022
日期:2004.3
acridine derivatives is disclosed. The starting materials are commercially available quinolines, which can be converted, via five high efficient steps, in a key quinoline intermediate substituted with a TBS-protected-enol–ether and an internal alkyne. The key and last step is a rhodium-catalyzed benzannulation of the quinoline intermediate yielding the desired poly-substituted acridines derivatives.
The invention relates to an aromatic compound, pharmaceutical composition comprising the same, and a method for preparing the compound and an intermediate thereof. The invention also relates to use of the compound for the manufacture of a medicament for the prevention or treatment of a PPAR-related disease.
Structural Simplification of Bedaquiline: the Discovery of 3-(4-(<i>N</i>,<i>N</i>-Dimethylaminomethyl)phenyl)quinoline-Derived Antitubercular Lead Compounds
their potent antitubercularactivity at sub‐microgram per mL concentrations against both sensitive and multidrug‐resistant (MDR) Mycobacterium tuberculosis strains. Six out of the top nine MIC‐ranked candidates were found to inhibit mycobacterial ATP synthesisactivity with IC50 values between 20 and 40 μm, one had IC50>66 μm, and two showed no inhibition, despite their antitubercularactivity. These results
The invention relates to an aromatic compound, pharmaceutical composition comprising the same, and a method for preparing the compound and an intermediate thereof. The invention also relates to use of the compound for the manufacture of a medicament for the prevention or treatment of a PPAR-related disease.
The invention relates to an aromatic compound, pharmaceutical composition comprising the same, and a method for preparing the compound and an intermediate thereof. The invention also relates to use of the compound for the manufacture of a medicament for the prevention or treatment of a PPAR-related disease.